Heidelberg, Germany: Oral administration of synthetic THC capsules (dronabinol) mitigates symptoms of attention deficit hyperactivity disorder (ADHD), according to a case study published by the International Association for Cannabis as Medicine (IACM, Germany).

Investigators at the Heidelberg University Medical Center reported that smoking cannabis dramatically improved the performance, behavior, and mental state of a 28-year-old male patient diagnosed with severe ADHD. "The present case report suggests that individuals suffering from ADHD … may - in some cases - benefit from cannabis treatment in that it appears to regulate activation to a level which may be considered optimum for performance," researchers concluded.

Full text of the case study previously appeared in the German journal Archives of Criminology.